Auxiliary shock-absorbing means for draft-riggings.



j. F.'0CONNOR. AUXILIARY SHOCK-ABSORBING MEANS FOR DRAFTV HIGGINGS.

APPLICATION FILE!) MAR. l. 1-915.

"Patented Feb. 5, 1918:.

2 SHEETS-SHEET l'.

W n M F m J WITNESSES:

N e .A

l. F. OCONNOR.

AUXILIARY SHOCK ABSORBING MEANS FUR DRAFT RIGGINGS. APPLICATION FILED'MAR. 18. 19|5.

mi; meme@ Feb'. 1918.

J 2 sHETs-sHEET a.

if Za' @my Z7 l 56 3f 54 3? 37 a NVENTOR. WITNESSES: JMF ,Connor integere.

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nppiicationniea namen 1e, i915.-

"Te all whore it may coa/cem.' I Be it lmown that ll, JOHN' JF. UCoivivon,

a vcitizen of the United States, residing at Chicago, in the county 'of Cook. and State of Illinois, have invented va certain new and nsefwil Improvement-rin. 'Auxiliary Shock' bsorbin'g Means for Draft-Riggings, of which the following is a ful-l, clear, concise,

fand exact description, reference lbeing had tothe accompanying drawings,vforniing a 4part of this specification.4 U' his invention relates to improvements in auxiliary shock absorbing means for draft l l -riggings' An vobject of the4 invention is to provide anauxiliary shock absorbing device to be .of the tandem spring t e. '20

and which effective under both buff anddraft.

'lhe invention .furthermore cbiisists in the improvements in the parts and devices and in the novel combinations ofthe parts and devices, as herein shown, `described or lliil the vdrawing. lforminga part .of this speei'cation, Figure l is ay vertical "sectional lView of a draft Vrigging showing my improveniente in connection therewith,` the auxiliary shock absorbing Adevice beingv shown -in`.section'and the yoke, draw-bar and gearV proper in side elevation. Fig. 2

`is a horizontal sectional view takensubstantially .oni-the line 2 -2 of Fig. 1 the folj lowers being vshownin plan. 3 isan` enlarged transverse vertical sectional view-- taken substantially on the line 3-'3 of Fig. 1. Fig. 4 .is a longitudinal horizontal sectional viewtaken von the' line llc-4 of lfigfy andfFig. his'ahtransverse verticall sectional 'view taken on ythe line -5, of z Fig. 4.

.;lln said drawing, the center sills are desig nated by the reference numeral 10 andthe same have secured; thereto tandem stop castings 11 formed in theusual manner with main'stopsand limiting stops.- 'The drawbar 12 is connected to a yoke'13 of the tan.-

th dem type'by any suitable means Vsuch for Speciucation of Letters Patent.

.pockets ofithe yoke members,

vthe formv shown in springs 20- each having an inner and anu thiinble of the yoke, are perforatedbosses 22 through which extends ,spreader 34. The wedge duluim 24k. As clearly appears from .a l. SHOCK- ABSOBBING MEMS EUR DWT-BXGGIMGS.

Serial No. 15,343.

instance as the 15 and the couplerkey 16. The yoke 13, as' shown,

provided with webs or fianges l8--18. Mounted in the garanderen. diere..v

engaging shoulders '14 and I" comprises two like loop members 'i .17-17, each' of which is 4front andrear pockets separated by vertical two which are se-v cured together as by bolts 19, are'the front l land rear shock absorbing means which, in-

the drawing, comprise outer coil a'iid mounted between the usual followers 214-21.

0n the inner faces of the vertical-webs 18, which together form the intermediate inwardly extended ashort shaft or pivot 23 and on which is pivotally mounted a leveror pendulum 24,

.the latter being fiilcrumed` about its rounded upper .end 25 in a plate 26. holte wise secured tothe topflanges of hev center Secured 'to' the lower ianges sills `is a combined tie andj supporting plate 27 bolted as indicated at said plate 27 having av 'or draft sills. of the center 28 to the flanges,

or other- V eeA longitudinally. extending cylinder 29 formed Y on the nndery side thereof, saidcylinderV being openA at threaded to receive -a removable .'cap 'SOI bined cylindrical frictionishell and spring casing 31.

the rear integral wall 33 of the friction shell its re'ar end and exteriorly" -Moun`ted within the vcylinder 29 isY acorn Within the latter is contained a spring'32 bearing at its rear end against.

and at its forward end yagainst a wedge or 311 coperates with a' plurality of eircularly arranged friction shoes 35 and. the latter in turn at vtheir front -ends are engaged byy a second wedge or spreader36. 11i-front of the wedge 362is a pressure lblock 3T longitudinally slotted as .indicated at 38 and within' which slot reciprocates the lower end of the lever or peii- Figs. 1

and, the upper and 'lower' arms of the yoke" are .slotted to permit back and forth therein. v' 1-"ilse the plate2 the lever 24 to swingl is provided. with an yelongated slot-39l on its upper face to-permit vthe movement of' -the lever and the friction shell 31 is' also slotted as indicated .at 40 to receive the flower end ofthe lever 2 4 therethrough. In

normal position of theparts the lever2d engages lthe front endnof said slot 40 and The operation is as follows: `'llhe draftl l rigging proper operates in the usual manner as will be understood and as it is so operated, say under buf,the yoke being moved rearwardly causes the lever 24 to be swung rearwardly about its fulcrum. The lever 24:' being thus moved will force the wedge 36 rearwardly and thereby actuate the friction mechanism 'which includes the shoes, wedges and spring 32. During thisoperation," the lfriction shell 31 is held stationary due to its engagement with the cap 3() and the. final position of the parts under full bud is as shownin Fig. 4. The parts wiil, of course, return to normal upon release of the pressure from the draw-bar. Under draft, the lever 2li' is swung forwardly by the yoke and this causes the friction shell 31 to loe-also moved forwardly, lthe lower end of the lever 24 traveling in the slot 38 of the pressure block 37. During this movement the wedge 36 will be heldstationary due to its engagement with said block37 and consequentlyl the continued movement of they friction shell will bring-the friction mechanism into play. Due to the fact that the lever 24, is pivotally connected substantially at 4its center tothe yoke, the movementat the lower end of the lever will be substantially twice that of the yoke. This permits of an auxiliary friction shock absorb ving device having a travelof twice that of' the gear'proper. By varying the .position of the pivotal connection between the lever and'the yoke, or other part of the gear to lwhich it may be attached, the travel of the lower endof the lever may .be varied ac# cordingly As will be understood by those skilled in the art, my improvements are not limited .to the particular type of draft rigging herein shown and described and various changes A and modifications may be made in the auX- iliary shock absorbing member and in the manner of actuating it, without in any way departing from. the spirit of the invention and all such changes and modifications are. contemplated as come within the scope of the claims appended hereto.

l. A'n auxiliary shock absorbing device for draft rigging's comprising a casing, a combined friction shell and spring case Islidably mounted therewithin, friction elements vcoperalole "with said shell and a spring mounted in said case.

2. The combination with a tandem spring draft rigging having a. tandem yoke pro vided with an intermediate thimble, yof an auxiliary shock absorbing device located auxiliaryshock absorbing device associated is slidably mounted, and means connected lauxiliary shock absorber.

integere below said rigging and attached to the draft sills, and a lever pivotally connected to said yoke within the thimble thereof and having its 'upper' end fulcrumed andits lower end in engagement with said auxiliary shock absorbing device.

3. The' combination with a draft rigging including a yoke and sills, of a combined supporting and saddle plate attachedv tosaid sills', at the bottom thereof, an auxiliary friction shock absorbing device carried by said plate, a cross plate secured to the tops of said sills, and a lever, said lever 4being fulcrumed' at its upper end with said cross plate,`pivotally 'connected intermediate its endsWith said yoke and having its lower end in engagement wi-th said friction shock absorbing device, 4. In an auxiliary shock absorbing device .for draft riggings, a saddle plate adapted to extend between and to be attached to a pair of draft sills, said plate being provided with an integral chamber adapted to receive a gear therewithin.

5. The combination with a tandem draft rigging, including a tandem yoke, of an with said tandem draft riggingsaid shock absorbing device including a friction shell, wedges and friction shoes Within the shell,

a spring, a casing within which said shell with the yoke for actuating the friction elements when the yoke is moved in one direction and for moving the shell when the yoke is moved in the opposite direction.

6. The `combination with a draft rigging having a yoke, of an auxiliary shock absorbing device associated with the draft rigging, saiddevice including a casing having its axis extending horizontally, a shell mount ed within said casing, a spring within said shell, frictionelements within the shell, and means connected with said yoke extending through said casing and said shell and adapted to engage one. of the friction clements.

7. A yoke for draft riggings-comprising two loop shaped members arranged side by side, said members being provided with vertical walls substantially at their center to act as u thimble for a tandem gear, said yoke members having their arms notched opposite each other in line with said vertical Walls to thereby provide recesses to accom modate a vertical lever or other element extending through the yoke for actuating an 120 JOHN F. OCONNOR.

Witnesses:

Camini C. RANz, GEORGIE Vicknnr. 

